This poem has potential, a few things to change would be the repetition of "lie" in the second and third stanza, this will turn the reader away. Because words don't carry as much meaning after they are used multiple times in a shorter poem.

Instead of;

Everyone lies, it's the sad truth but no one lies as you lied

Try something more like;

It's the sad truth that everyone lies, but no one lies like you.

This could give the reader more of an understanding and still move the poem along.